I'm using UGB on a 2015 Coachman Prism on an MB Sprinter chassis with a 6-cyl diesel engine.

The UGB works OK .... sort of. I can set about 15 working gauges out of more than a hundred the UGB setup reports are available. Fortunately, the 15 that I do get are important ones. The setup for auto UGB power-on with engine start, and auto (power save off) with engine shut down is tricky.

Oh, I'm using an tablet for display. The Bluetooth UGB-tablet link was easily established.